Comparing: T1E6 vs. T2 Light Tank vs. Pz.Kpfw. I

Experimental vehicles T1E4 through T1E6 were heavily influenced by the British Vickers E. The first prototype was manufactured by the Cunningham corporation in 1931. After trials in 1932, an upgraded variant was built. However, a different experimental tank, the T2, was preferred.

The M2 prototype with Vickers suspension. After trials in 1934, the tank was sent for redesign, as the performance of the suspension was not sufficient. The tank never saw mass production.

The Pz I Ausf. A was the first mass-produced German tank. In 1935 the design received an upgrade, including elongated hull and a more powerful engine. Mass production of this version, the Pz I Ausf. B, eventually totalled 675 tanks. The standard armament was weak, but some tanks were upgraded on the battlefield to mount 20-mm guns.